Jarring device for pump structures



W ZMQJZWL Dec. 10, 1929. R. w. BANKS 1,739,204

JARRING DEVICE FOR PUMP STRUCTURES Filed June 15, 1927 2 SheetsShee1 2IN V EN TOR. fidflffir m BANKS I a 4 TTORNEYS.

WWII/E5555 Patented Dec. 10, 1929 UNITED STATES ROBERT W. BANKS, OF ELDOR ADO, ARKANSAS JAB-RING DEVICE FOR PUMP STRUCTURES ApplieationfiledJune 15,

This invention relates to anattachment for pump structures and moreparticularly to the novel construction of disengaging jars, and

has for its primary object the provision of a deviceparticularly adaptedfor'oil and water wells for jarring loose sucker rods, pipes,

pumps, pump plungers, and other devices which may become stuck in awell, brought about by conditions well known 1 ticular industry. 7

Another object of the invention is the provision of a device that can beconnected to an end of a string of sucker rod and to the topof a pump orpump structure to remain inactive under normal conditions, but capableof being immediately rendered active upon the well sanding up or thepump or pump plunger becoming clogged with sand or other foreign matter.

Another object of the invention is the novel design and connection ofthe parts and oper-v ation thereof whereby time, labor and mate-- rialmay be saved and theexpense connected with the pulling up of tubecasings or other. devices eliminated.

Besides the above'my invention is 'distin-' guished in the constructionof-a device that may be very readily incorporated in pump structurescommonly in use and which whenin place will not interfere in any waywith the proper operation of the various structures or drilling devices.1

A feature of theinvention is the construction-and association of thevarious parts for full protection against sand, water or other mattercoming in contact therewith.w

An important feature of'the invention 'is the. design and mode ofconnection of the various parts so "that all joints or connections arevisible for proper inspection thereby eliminating the possibility ofaccident or obstruction of the well due to improper or weak connections.

With these and other objects in view, the

invention will be better understood from the following detaileddescription taken in connection with the accompanying drawings wherein:

- -F-igure l is a side elevation of the device;

Figure 2 is a similar view with certain in this par-,

engagement between the clutch members.

1927. Serial No. 199,082.

parts disconnected and certain parts in section;

Figure 3 is a vertical sectional view of the barrel;

Figure 4 is a vertical sectional view of the device;

Figure 5 is a sectional view on the line 5-5 of Figure 4, and

Figure 6 is a detailed-view illustrating the Again referring to thedrawings, illustrating one of the many constructions of my invention,the numeral 1 designates a pump structure, which may be of any usualdesign now on the market constructed to be operated by a line of suckerrods 2. My improved jar device 3 is interposed between the sucker rods 2and the pump-structure and so designed as to provide a rigid connectionbetween the pump structure and the sucker rods 7' under normalconditions, but under abnormal conditions capable of being adjusted soas to subject the pump structure to a jarring action or to completelydisengage the sucker rods from the pump structure.

To accomplish this desired result, I provide a lower connector 4 havinga female thread ed section 5 for direct engagement with the pumpstructure. This connector 4 is further provided with a male threadedsection so 6 the threads of which being of left hand formation to engagecorrespondingly shaped threads in a female section 7 formed on anintermediate connector 8. This intermediate connector 8 is also providedwith a threaded male section 9, engaging the threads carried by thelower end of a barrel 10. The upper end of this barrel 10 has screwthreaded engagement 11 with a third connector 12 hereinafter known asthe upper connector directly screw threaded to the usual line of suckerrods designated by the numeral 2. Each of these connectors are providedwith flattened surfaces 13 to facilitate the application'of a tooL- Ajar rod 14 has its lower end detachably connected to and extends axiallyfrom the lower conne'ictor4, andsl'idably received in the connector 8and also in the barrel 10. The

lower connector 4fis' provided itsupper end with an axial recess 4having screw threads of left-hand formation, and the lower end of thejar rod 14; is similarly screw threaded and engaged in the recess. Thisrod 14 has fixedly secured thereto a head 15 slidably arranged withinthe barrel and engageable with the shoulder 16 provided by the member 9to limit the relative reciprocatory movements of the rod and barrel andto provide the proper jarringaction for disconnecting the pump structureor other devices from their engagement with the well structure.

As far as I have proceeded, it will be appreciated that when the femalesection 7 has screw threaded engagement with the male section 6 a rigidconnection isprovided between the pump structure and the sucker rods bymeans of the barrel 10, thereby rendering the jarring device inactive,but upon disengagement of'the female section 7 with the male section 6,which may be accomplished by turning the sucker rods 2 to the the right,a loose connection is provided between the sucker rods and the pumpstructure to enable the barrel and ar rod to have relative reciprocatorymovements for intermittently bringing the head 15 into engagement withthe shoulder 16 for providing the proper jarring effects. It is,ofcourse, to be'understood that the drilling rig or other type of drillingmachinery will be adjusted to accommodate this sliding connection pro--vided between the sucker rods and the pump structure to enable the headsto properly engage the shoulder 16 to create the proper forces to jarthe parts loose. I If under exceptional unfavorable conditions the pumpstructure cannot be dislodged by a jarring action, I have incorporatedin my invention a clutch device engageable in a predeterminedarrangement of the component parts to completely disconnect the jardevice from the pump structure.

There are various ways in which this desired result may be accomplishedbut for the purpose of illustration, I have shown an ordinary clutchstructure the componentparts of which are carried respectively by thebarrel and the jar rod so as to engage in a'predet'ermined position ofthe barrel and jar rod. One of the clutch elements 17 is directlysecured to the head 15 while the her clu ch elemen 1811s moun edcontiguo to, the shoulder 16., so th t upon the ba e an a l reaching itsuppermost position and the jar rod lireaching its lowermost position,the lutch element' wi linterengag'e to provid a rigid connection be eenthe bar e-.1 and the rod so that the two can be turned as a unit whenthe sucker rods re tur ed to, he right- Pu to this connection ro aryc'fie'n f th su ker rods 2 will cause he jar an n tic sils nnt from thelower. c nnect r r so arts of the ja dev ce, with the exception of saidconnector, may be quickly and easily removed from the well. Theconnectors 4 and 12 are of solid formation. The connector 4 closes thelower end of the connector 8 and the connector 12 closes the upper endof the barrel 10, whereby to prevent the entrance of water and otherforeign matter into the barrel and thus insure the proper functioning ofthe device after the disconnection of the connector 8 from the connector.4.-.

From the foregoing description taken in l1Il. I Witllihi accompanyingdrawings, itwill be appreciated that I have provided a device capable ofthe dual function of subjecting the pump structure to a jarring actionor entirely disconnecting the pump structure from its operatingstructure. This result is accomplished with a minimum number of partsthat are substantially connected to gether and when connected,completely enclosed so as to be fully protected from sand orothe'r'foreign matter.

- In concluding, I wish to state that the various parts maybe designedand arranged in other relations than illustratedand various other typesof clutches and various other constructions or connectors may beutilized for providing a detachable connection be tween thecomponentparts, therefore, I do not desire to be limited in any mannerexcept as set forth in the following claims.

What I claim as new is: l

1. A jar'dev'ice for a pump structure comprising a connector adapted tobe secured to the pump structure, a jar rod detachably secured to theconnector by left hand screw threads, a head carried by the rod, abarrel receiving the rod and head, and; means connecting the barrel tothe connector, said means being secured to the barrel by right handthreads and detachably secured to the connector byleft-hand screwthreads.

2. A device for a pump structure comprising a lower connector adapted tobe secured to the pump structure, an intermediate connector deta'chablysecured to the lower iconnector and having an axial passage closed bythe lower connector, a jar rod passing through the intermediateconnector and having its lower end detachably connected to the lowerconnector, a head fixedly secured to the upper end of the rod, a'barrelreeeiving the rod head and secured to the intermediate connectorand having its lower end closed by'said connector, and anupper'connector secured and closing the upper end of the barrel.

In testimony whereof I aifix my signature.

' W. BANKS.

